Lecture 23 Chapter 11 - E. one σ bond and three π bonds...

Info iconThis preview shows pages 1–18. Sign up to view the full content.

View Full Document Right Arrow Icon
General Reminders: Online Homework -- you must correctly complete at least 80% of each assignment to receive full credit -- you must press the submit button at the end of an assignment for it to be counted in the gradebook -- you can redo an assignment – the system will save your best attempt Office Hours -- I will have my regular Saturday office hours tomorrow (November 21) -- I will not have Saturday office hours on the Saturday after Thanksgiving (November 28)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 11 continued Lecture 23 November 20, 2009
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Valence bond theory predicts that phosphorus will use _______ hybrid orbitals in the cation, PCl 4 +. A. sp B. sp 2 C. sp 3 D. sp 3 d E. sp 3 d 2
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Valence bond theory predicts that xenon will use _____ hybrid orbitals in XeOF 4 . A. sp B. sp 2 C. sp 3 D. sp 3 d E. sp 3 d 2
Background image of page 6
Orbital Overlap: σ and π bonds
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
According to valence bond theory, the bond between carbon and nitrogen in hydrogen cyanide (HCN) consists of A. no σ bonds and three π bonds B. one σ bond and two π bonds C. two σ bonds and one π bond D. three σ bonds and no π bonds
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 16
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 18
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: E. one σ bond and three π bonds Molecular Rotation A note on isomers: Simply stated, Isomers are molecules that have the same molecular formula but a different arrangement of atoms. We will discuss isomers in more detail when we cover Chapter 15 in lecture. The main concept that you should get from the previous slide is that sigma bonds allow rotation about them and pi bonds do not. So, if we have different arrangements of atoms around a double bond, then we often end up with isomers that have different chemical properties (like molecular polarity for example.) The cis- and trans- isomers of 1,2 dichloroethylene are two different molecules because we can’t just rotate around the double bond to form the two different arrangements of atoms. Molecular Orbital Theory Here are two links to videos that show the paramagnetism of liquid oxygen: http://chemed.chem.purdue.edu/demos/main_pages/8.6.html www.youtube.com/watch?v=y.Js5ENtilIo...
View Full Document

This note was uploaded on 04/04/2011 for the course CHEM 1100 taught by Professor Mcintosh during the Fall '08 term at Rensselaer Polytechnic Institute.

Page1 / 18

Lecture 23 Chapter 11 - E. one σ bond and three π bonds...

This preview shows document pages 1 - 18. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online